Valve



a bet l4 by providing a latented May 7, 19 40 PATENT OFFICE VALVE v 1 James Land,

' p Dole Valve Company, tion of Illinois Application December ChicagmIll; assignor The Chicago, 111., a corpora- 19, 1934, Serial No. 158,203

a claims." (01. 236-34) This invention relates to valves and has for its object to provide a new and improved device of this description. The invention relates to a valve particularly adapted to be usedin connection with the cooling circulatory system of an internal combustion engine. The invention has as a further object to provide a valve wherein a portion of the valve casing itself is moved to open the valve. The invention has further objects which are more particularly pointed out in the accompanying description.

Referring now to the drawing,

Fig. 1 is a plan view of one form of valve embodying the invention;

Fig. 2 is a vertical sectional view therethrough.

Fig. 3 is a side elevation of the device shown in Fig. 1.-

Like numerals refer to like parts throughout the several figures.

20 Referring now to the drawing, I have shown a valve construction where there is a valve casing I having an admission opening 2. The valve casing is provided with two side sections 3 and .4 which are hinged at opposite ends. In the con"- struction shown the section 3 is hinged at the bottom at the point 5, and the section 4 is hinged at the top at the point 6. These two sections preferably engage a part I located between them and which may form a part of-the casing. The section, 4 may be hinged to this part I, and the section 3 may have a tight engagement there-. with, the section 4 having a tight engagement with the part 8 so that when the two parts are closed, the casing is closed so that liquid cannot 36 pass therethrough.

. Connected with the casing l are the separated supports l0, having the cross connecting member I l carrying a thermostatic coil. One end of this coil is connected with the member II and the other end i3 is attached to a connecting member l4 located between the sections 3 and 4 and connected therewith, preferably by the pivots 3 so as to make the connection flexible. Since, because of the pivotal movement of the two sections, the 46 portion of the section 4 to which the connecting member i4 is connected moves downwardly in a circular path, when the part 4 is moved to open it, and the portion of the section 3 to which the connecting member i4 is connected, moves upwardly in a circular pathat the same time, some means must be provided for compensating for the difference in this pivotal movementof the sec-' tions. This means, as herein shown, consists in, loosely connecting the member l3 with the memslotin the member l4 larger than the end of the member l3, thus providing a loose connection between the member 13 and the connecting member l4,- which fully compensates for this difference in pivotal movement.

The thermostatic coil I2 is located in the liquid, the temperature of which is to control the opening and closing of the sections 3 and .4. When this liquid is cooled the sections'are closed, as shown in Fig. 2. When the temperature rises above a predetermined amount the thermostatic m coil expands and moves the connecting member 13 in one direction, say to the left. This causes the sections 3 to move about its hinges 5 at the bottom so as to open it at the top, and the section 4 to move about its hinge G at the top so as to 15 open it at the bottom, thereby permitting the liquid to pass out of the casing. When the temperature of the liquid in which the thermostatic coil is located falls below a predetermined amount, the coil contracts and moves the sec- 90 tions 3 and 4 back to their closed positions.-

It will be seen that by means of this construction, when the sections 3 and 4 are closed the pressure inside of the valve is balanced, for the inner faces of the sections 3 and 4 have substanu tially the same surface area, and since they are connected together by the member H thepressure on the inside has no tendency to open either section. When the thermostat acts for example to move the part I4 to the left, it is not required to overcome any of the pressure of the liquid inside the valve to secure the movement of the sections 4 and 5.

I claim:

1. A device of the kind described comprising a casing having an inlet, said casing having two opposed sections which form part of the casing, each section having a separate hinge at one end, the hinges being spaced apart, the other end being free, the free end of one section being opo posite the hinged end of the other section, a thermostat connected with said sections and adapted to move them about their hinges to open or close them.

2. A device of the kind described comprising a casing having an inlet, said casing havingtwo opposed sections which form part of the casing, each section having a separate hinge at one end, the hinges being spaced apart, the other end being free, the free endof one section being opposite the hinged end of the other section, a connection between said hinged sections, a thermostat having a part engaging said connection, the thermostat acting to move said sections to their open andclosed positions. v u

3. A device of the kind described comprising a casing having an inlet, said casing having two opposed sections which move substantially in the same direction to open the casing to permit the escape of liquid therefrom, a connection between said sections, and a thermostat having a part extending at an angle to said connection and located intermediate said sections and engaging said connection, the thermostat acting to move said sections to their open positions when the temperature thereof rises to a predetermined point.

4. A device of the kind described comprising a casing having an inlet, said casing having two form part of the casing, each section having a separate hinge at one end,

being free, the free end of one section being opposite the hinged end of the other'section, a flexible connection'between said hinged sections, a thermostat having a part attached to said connection, the thermostat acting to move the sections to their open positions when ture rises to a predetermined point.

5. A device 01 the kind described comprising a casing having an inlet, said casing having two hinged at opposite ends, a consaid hinged sections, a thermostat having a part engaging said connection, the thermostat acting to move said sections to their open and closed positions, and means for compensatingfor the difierence in pivotal movement of said sections. 6. A device of the kind described comprising a casing having an inlet, said casing having two opening and closing sections forming sides thereof, said sections pivoted at opposite ends, and

' means for simultaneously moving one end of one section to form a discharge opening and the opposite end of the other charge opening, whereby two separated discharge openings are simultaneously provided.

J AMES K. LUND.

the tempera section to form a dis- I 

